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(No Moc'el.)

H. R. KUBRSTEN.

FILTER.

Patented Mar. 6, 1894.

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NiTnD STATES PATENT lirica HUGO RJKUERSTEN, OF CHICAGO, ILLINOIS, ASSIGNOR Oli ONE-HALF TO HERMANN MICHEL, OF SAME PLACE.

FILTER.

SPECIFICATION forming part of Letters Patent No. 515,833, dated March 6, 1894.

Application led July 1211893. SerialNo. 480,307. (No model.)

. To @ZZ whom it may concern:

Be it known that I, HUGO R. Konnsfrnn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Filters; and I do hereby declare the following to be a full, clear, and exact Vdescription of the invention, such as will enable others skilled in the art to which it appertains .to make and kuse the same.

This invention relates to a novel construction in a tilter and consists in the features of construction and combination of parts hereinafter fully describedand specifically claimed.

In the accompanying drawings illustrating my invention: Figure lis a vertical sectional view of a filter constructed inaccordance with my invention. Fig. 2is a top plan view of the same with the cover removed. Fig. 3 is a cross sectional view on the line 3 8 of Fig. l. Fig. 4 is afragmentary detail lview showing the means I employ for securing various parts of the filter.

Referring now to said drawings A indicates the casing of my filter which is preferably constructed of glazed 1 earthenware. The cover l rests upon the upper end of the casing A and can be secured by any convenient means. Located within said casin g is a liltering jar 2 and an interior jar 3 for holding a supply ot ice. These jars are of such size as to provide a space between each other and between the filtering jar and the casing `A and are each supported by flanges 4 and 5 at their upper ends upon the casing A. The tiltering jar 2 is made of porous earthenware suitable for filtering purposes, and the flange 4 on the upper end thereof rest-s on an upl wardly facing shoulder or projection 6 on the interior of the casing A. The periphery of the flange 4is notched as shown at 8, so as to pass over lugs 7 on the inner face of the casing and located over the shoulder 6. Adj acent to the notches S of the flange 4 the upper face of the flange is inclined as at 9 so that when the jar2 is` placed in position with- -in thecasing A upon said shoulder 6 and then turned slightly the inclined lines 9 will bear against the lugs 7 to force the said flange 4 down upon the shoulder 6, and I employ a packing ring 10 that is located between the ange 4 and shoulder 6 so as to provide a water tight joint between these parts. The ice jar 3 is supported by a shoulder l1 upon the casing on the upper end thereof and through this shoulder ll are located lugs 12V that serve to engage the inclined face I3 ot' the flange 5, which flange is also notched as shown atl-4 to pass thelugs l2, and by'means of this construction and packing ring 17 between the flange and shoulder l1 I provide a water tight joint between said jar 3 and the casing.

From lthe foregoing it will be seen that within the casing A two separate watertight chambers are made separated by a porous jar and that the jars 2 and 3 can be easily removed and as readily replaced for cleaning or other purposes.

Water is admitted to the outer chamber 18 through a plurality of inlet ports 19 through the wall of the casing A. These ports 19 are arranged onev above the other to the top of the iiltering jar 2 and communicate with the passage 2O on the outside of the casing, which passage communicates with the source sunplying the water under pressure. In this way itwill be noticed that I supply the water to the outer chamber 18, which being under pressure will percolate and pass through the filtering jar in the inner chamber 21, and after lling the same will pass out through the outlet port- 22 at the upper end of said chamber 2l, said outlet port being made through the wall of the casing at a point between the connection of the flanges 4 and- 5 therewith. A supply of ice can be placed within the inner jar 3 to cool the water in the chamber 2l, and it being noted that said chamber is comparatively narrow the water will be efficiently cooled. v

It is manifest that the filter can be cleaned by removing the jars 2 and 3 which can be readily accomplished, but I have also constructed my filter so that it may be cleaned without removing any of the parts, and for this purpose I make an opening 23 in the chamber of the casing A which is protected bya surrounding spout 24 and within the said spout 24 and over the opening 23, I have arranged a valve 25, that is carried by a spring arm 26. The other end of this said spring arm bears against the casing and the tension, thereof is controlled by an adjusting nut 27 upon a bolt 29 secured to the casing and passes through said spring arm. The said nut 27 can be quickly adjusted and in the inner portion of the filter saidnut is screwed up suffi, ciently to hold the valve against the opening 23 under suffcienttension to prevent the water from escaping therefrom under ordinary tension; but when it is desired to clean the filter the said valve can be opened or pulled n back either by hand or loosening up the adjusting nut 27 so that the force of the water will overcome the tension of the spring. It will be noted also thatif it is desired to draw unfiltered Waterit can be done in this manner. In a filter of this kind it is obvious that the greatest accumulation of filtered matter which should be cleaned from the filter congregates upon the face ofthe filtering jarand in filtering the streams of water entering through the ports 19 will strike against the outer face of the filtering jar and wash these impurities away, and as a further and separate improvement in filters I incline the ports 19 so that they are practically at a tangent to the outer face of the filtering jar as is clearly shown in Fig. 3, so that the water entering through these ports 19 will be directed around the cylinder to more eficiently Wash the same.

It will be understood of course that in washing the filter the pressure of the water can be increased or the same pressure used, in which latter case it will be necessary to loosen the tension upon the valve 25.

I claim as my invention- 1. A filter comprising a casing A, a filtering jar 2 located therein and having water tight connections therewith, a jar 3 located within said filtering jar 2 and having water tight connections with the walls of said casing, inlet ports through said casing to connect with the chamber between the same and said filtering jar, and an outlet port between said filtering jar and said jar 3, substantially as described.

2. A filter comprising a casing arernovable filtering jar 2 located therein and inlet ports between said filtering jar2 and the casing, a removable jar 3 located within the filtering jar 2 and supported upon the casing, and an outlet port between said stantially as described.

In testimony whereof Iaffix my signature in presence of two witnesses.

HUGO R. KUERSTEN.

Witnesses:

HARRY COBB KENNEDY, GEO. H. HALL.

jars 2 and 3, sub-V 

